Me and my friend replaced the transmission tenisioner on my 2011 countryman and after we put it all back together. Put key in ignition and it won't turn over. It cranks but won't ignite. I do get a key symbol. Thought it might be something with computer or immobilizer. If anyone has come across this issue please let me know.

 

what do you mean by transmission tensioner?

 

My bets are on this;